Machine for scoring, cutting, or otherwise treating carboard or the like



Feb. 8 192 65 7 N. P. ANDREW MACHINE FOR SCORING, CUTTING, 0R GTHERWISE TREATING CARDBOARD OR THE LIKE Filed May 19, 1925 Patented Feb. '8, 1927.

NLCEOLAS 'PEI TTR EATH ANDREW, or rrnssnn r, ENGLAND.

macnmnron soc-nine, corrrlve, on OTHERWISE; TREATING cARBo RnoR THE LIKE.

Application filed. May 19, 1925, Serial No. 31,349, and illGlBElt Britain March 16; 1925;:

This invention relates to machines for scoring, cutting or otherwise treating cardboard or, the like and has particularthough not exclusive reference to machines known as double scoring machines, wherein the cardboard blanks or the-like to be scored are fed: successively to scoring tools or cutters in one direction and: are then successively moved at right; angles: by an automatically operated pusher'bar to another set of scoringtools or cutters so as to be scored at right angles. 7

The'main object of the present invention is to provide an automatic contrivance or mechanism which, does not involve the use of any complicated devices orgearing, for causing the pusher bar to operate according-to the rateat which the'blanks are fed to the first or initial; scoring means.

The contrivance or mechanism according to, this invention comprises an electrical switch or make and break device which is adapted to; be operated by each blank during or as a result of its feeding movement into the machine forelectrically controlling theoperation of a clutch by means of which therpusherbaumechanism is rendered operative or inoperative. The said switch or make and break device may, after the blank has. passed the initial scoring means establish a circuit and energize a device which therebyallowsorcauses the clutch tocouple the pusher bar mechanism to its driving means so as to cause the pusher bar to perform its forward stroke and supply the blank (which has been scored in one direction) tolthe second scoring means in the direction ,at right angles to the initial movement, whereupon the pusher bar-recedes or moves. rearwardlv into its normal or inoperative position. Upon the pusher bar reaching 'tlhis position the said clutch is automatically; disconnected so that the pusher bar remainsinoperative until the next blank is fed forward and actuatesthe switch device which then establishes the circuit and thus causes the clutch to be connected to the drivingmeans. The rate of feeding movement ot;tl1e1blanks'may be as rapid or as slow as desired but the, operation of the pusher bar sis entirely dependent upon the rate, zit-which the blank li n t lly e itewarjd andwhich always-corresponds with the rate or rapidity with WlliChilhB blanks are initiallyted' into the machine.

In order that the said invention may be clearly understood and'readily carried into eiiechthe same will bemore fully described with reference to the examples illustrated in the accompanying diagrammatic drawings,i11wliich:, I y Figuresl, 2 and'3qrepresent a side view, a plan, and an end view of so much of a welllknovvn construction of double-scoring machine, as is necessary for a' proper understanding of the invention, with the I electrically controlled feedpmechanism according to the present invention applied thereto. I a a Figures 4t and 5 are respectively aside vieiv and anendjview otthe sw'itch or make and break device. 1

Figure 16 is an interior view of EL WBll known type of: clutch Whichmay be used for the purpose of the present invention. 1

A representsthe 'teedtable of the double scoring machinegon which the blanks are supplied by hand to pass successively under a row of; scoring knives or cutters located at B and between, feed; rollers C that are driven-in any usual onsuitable manner and cause the blanks as they are scored; at B to pass. onto a table D. E represents the reciprocatorypusher bar (see Figures 2 and 3) which adapted to move thescored blank along the table D in a-gdirection at right angles to the initial feeding movement. so thatthe-blfank can be passed under, another row of scoring knives located at F- which score it at right; angles=tothe prlevioussco-rings. In theexampleshown the pusher bar E is adapted to be operatedbyhmeans of the belt driven pulley Gthrough an automatically controlled-clutch G which when required couples the pulley- G andwthe shaft G together so that the latter can be rotated forimparting; through the cranked? .end G and; the, connecting lifnk G reci-pnocatory movement to a slide on; whichv the pusher bar E isadjustably; secured inlt he usu-al manner so that the latter can; be reciprocated as and; when; required. 'for the purpose of pushing the blanka't right-angles to its initial teedingmovernent: as aforesaid.

As: each; blank. emerges. from {the feed rollers-G and passes; on: to the: tablea-Dgit engages a switch, or make and break device H which upon the blank reachmg the end "of its, initial movement operates to establish an electrical circuit for energizing a solenoid I which withdraws a controlling arm J from the engagement with the clutch Gr so that the latter couples the rotating pulley Gto the shaft G which is therefore driven so that the pusher bar E can be actuated through the mechanismas aforesaid.

The switch device in the example shown comprises a support or bracket H adapted to. be adjustably clamped on a rod K or other part which may conveniently be disposed adjacent to the feed rollers G and a trip arm H freely suspended on the bracket -H and provided with a curved lower end H in a position to be engaged by the for- -ward edge of the blank on emerging from .fluence of a spring H normal position a. weighted contact piece the feed rollers C so as to enable the arm H to be angularly displaced'on its supporting pin H by the blank. The trip arm H is held'in the displaced position while the blank is passing under the same but so soon as the rear edge of the blank has passed beyond the curved end H the arm H moves back to its normal position under the in- In moving to the H mounted on the pin H and connected to the arm H by a spring H", comes into contact -with a contact piece H on the 7 pin H bracket -H so as to establish the circuit. The contact piece H is carried on a pin H fixed in an insulatmgsleeve H mounted n the bracket H and a conductor L leading from a terminal L is connected to the said The other cont-act piece H is earthed through the metal parts of the switch device and the frame of the'machi'ne.

" A conductor L leading from a terminal L is connected to a solenoid I which is also earthed through the frame of the machine. The plunger or core I of the solenoid is connected'by a link I to the clutch controlling arm J which is pivotally mounted and is maintained in its operative position by a compression spring J. Theclutch G is preferably a well known type of single revolution clutch, which comprises a series of locking balls and springs, see Figure-6,

and is so arranged that when the projection G" carried by part of the clutch is engaged.

by the controlling arm J the clutch is inoperative and the revolving pulley G is not coupled to the shaft G Upon the arm J being moved away from the clutch projection G" due to the inward movement of the solenoid plunger 1 when the solenoid is energized as aforesaid the clutch automaticall operates and, connects the pulley G to theshaft Gr which is therefore rotated and I operates the pusher bar E as aforesaid.

The blanks to be scored are successively fed'forward on the table A and as each the initial forward movement.

- thereon.

blank emerges from the feed rollers C the trip arm H is first raised and then falls or returns to its normal position after the blank has reached the end of its initial movement and has assumed a position ready to be moved by the pusher bar E tothe scoring knives at F. As the trip arm returns to its normal position its weighted contact piece H inakes' contact. with the fixed contact piece H with the result that the electrical circuit is established for energizlng the solenoid whose plunger 1 is then drawn inwardly and through the link 1 moves the controlling arm J from engagement with the clutch projection G. The clutch G therefore causes the shaft G to be rotated and by means of the crank G and the link G the pusher bar is actuated to' cause the blank to be moved towards and under the scoring tools at F in a direction at right angles to its initial movement.

After the shaft G has made one complete revolution and the pusher bar has 111 conse- I quence been moved forward and then rearwardly ready to receive another blank, the

clutch projection G (which has also made a complete revolution) has moved into con tact with the controlling arm J whichhas been restored to" its operative or looking position under the influence of its compression spring J upon de-energization of the solenoid due to the contact piece H not re- -maining in contact with the "contact piece stops in the proper position to receive the blanks as they emerge from the feed rollers C. Instead of it switch device which 1s operated as a result of the blank engaging it.

during the initial forwardmovement of the f blank and then allowing it to fall as aforesaid a device may be provided which is adapted to establish the electrical circuit upon being engaged by the forward part or edge of the blank at or towards the end of For in stance, the forward edge of the blank may come into contact with a. stop havinga make and break device or switch provided The control of the pusher bar mechanism such as aforesaid, may be employed in single scoring, machines or similar machines in which a series of blanks are successively supplied'to a position ready to be movedforwardby an automatically 0- erated pusher bar or the like so as to ,e scored or otherwise treated.

iVhat I claim anddesire to secure by Letters Patent of the United States is 1. A cardboard scoring,.cuating or similar machine, in which a pusher bar moves the cardboard blanks in succession to a set of scoring knives or cutters, comprising electrical means whereby the operation of the pusher bar is controlled by the passage of each blank out of engagement with said means so. that the pusher bar operates according to the rate at which the blanks are.

supplied thereto.

2. A cardboard scoring, cutting'or similar machine, in which a pusher bar moves the kardboard blanks in succession to a set ofj scoring knives. or cutters, comprising an elecirital. device which is operated by each of the cardboard blanks to establish a circuit as the latter pass out of engagement therewith and are successively supplied; to the pusher bar, and means operated each time said circuit isestablished for causing the pusher bar to be connected to its driving 3. A cardboard scoring, cutting or similar machine, in which a pusher bar moves the cardboard blanks in succession to a set of scoring knives or cutters, comprising a switch device adapted tobe enga-ged byeach blank to establish'an. electric circuit as each blank is passed out of engagement therewith and supplied to the pusher bar, mechanismfor operating said pusher bar, a clutch for connecting said mechanism to driving means and means energized each time the said circuit is established as a result of the blank actuating the switch device, for controlling said clutch so that it couples the pusher bar mechanism to the driving means each time a blank is positioned ready torbe moved by the pusher-bar.

i. A cardboard'scoring, cutting or similar machine, in which a pusherfbar moves the cardboard blanks in succession to aset of scoring knives or cutters, comprising a switch device adapted to be engaged by each blank to establish an electric circuit as each blank is passed out of engagement therewith and supplied to the pusher bar,

'a shaft for operating said pusher bar, a

clutch for connecting said shaft to a continuously rotating'driving member, an arm for controlling said clutch and normally maintaining it so that the shaft is not coupled to the driving member, a solenoid energized when said circuit is established, and a plunger within said solenoid for disengaging the controlling arm from the clutch each time the solenoid is energized so that said shaft and pusher bar can be operated.

5. A cardboard scoring, cutting or similar machine, in which a pusher bar moves the cardboard. blanks in suecession'to a set of. scoring knives or cutters, comprising a switch de vice adaptedto be engaged by each blank ELS/li? is supplied to the pusherba-r for establishing an electrical circuit, a shaft for operating said pusher bar through a crank and link c0nnect1on, .a clutch for connecting saidshaft toa continuously rotating driving membcna spring controlled arm adapted to holdthe clutch so that the shaft is not coupled to the driving member, a solenoid which is energized each time the circuit is established, a plungerwithin said solenoid, and alink connecting said solenoid plunger to the said clutch controlling arm so as to withdraw the said arm from engagement with the V clutch each time the solenoid is energized, the clutch being such as to enable the shaft to make one revolution and cause the pusher to move forwardly and then rearwardly wheres upon it is again engaged by said controlling arm to uncouple the said shaft from'the driving member until the circuit is again established by the next succeeding blank;

6. A cardboard scoring, cuttingor similar machine in which a. pusher bar moves cardboard blanks'in succession to a set of .scorlng knives or cutters, comprising feed rollers for successively supplying. the blanks to apusher bar, mechanism for reciprocating-said. pusher bar, a shaft-for operating said mechanism, and a clutch for connecting the shaft to a driving-member, an electrical switch: or make and break device located in a position to be actuated by each blank as i it is supplied to the pusher bar forestablishinga circuit, a. solenoid which is energized each time the circuit is established, and a .mcmber which normally holds the clntchinoperative but which is operated by said solenoid when energized for allowing the clutchlo couple the said shaft to said driving member so as to cause the pusher bar to. be moved forwardly and-then rearwardly.

1-, L. A cardboard scoring, ciutinggor similar machine in which a pusher bar moves cardboard blanks in succession to of spring controlled arm normally held in engagement with a projection on one of the clutch members to prevent the said shaft from being coupled to its driving member, the said arm being adapted. to be withdrawn from engagement with said clutch projection when the solenoid is energized for coupling said shaft to the driving mem-- her and causing the pusher bar'to move forwardly and then rearwardly, whereupon the clutch is again engagedby the controlling arm to nncouple the shaft until such time as thenext blank operates the make and scoring knives or cutters, comprising feed rollers by means of which each blank is passed to a pusher bar, a pivoted arm adapt ed to be raised by the forward edge of the blank andto fall after the blank has moved :pled to its driving member for causing the to be engaged by each blank, a support on beyond it, a contact piece carried by said arm for engaging a fixed contact on a brack-.

' et carrying said pivoted arm, a solenoid ener gized .each time the circuit is established,

a shaft for operating the pusher bar, a drivlng member'for saidshaft, a clutch for corn necting said shaft to said driving member and an arm which normally holds the clutch inoperative and which'is withdrawn from engagement with the clutch by the solenoid when energized to allow the shaft to be coupusher bar to move the blank forwardly and then to be moved rearwardly ready to re ceive another blank: and to" operate again when such blank issupplied.

"9. For use on a cardboard scoring, cutting or similar machine in whichthe blanks are successively supplied to a set of scoring knives or cutters by a pusher bar, a feed'controlling device comprising a trip arm having a curved end adapted to be en- 'gaged by each blank when being supplied to the pusherbar, a support on which said arm is freely suspended, an electrical contact piece movable with said arm, a contact piece on said support, the contact piece on the said arm being adapted to come into contact with the contact piece on the sup port for establishing a circuit, each time a blank is supplied to the pusher bar and means operated as a result of the circuit beby the blank when being 10. For use on a cardboard scoring, cut-' ting or similar machine in which the blanks are successively supplied to set of scoring knives or cutters by a pusher bar, a feed controlling ClBVICQ comprising a trap arm having a curved end adapted to be engaged pusher bar, a support on which said arm is freely suspended, a contact piece movable with said arm, a contact piece on said support, the contact piece on thesaid arm being adapted to come into contact with the con tact piece on the support for establishing a circuit, a solenoid adapted to'be energized when the circuit is established anda con trolling member adapted to be actuated by the solenoid when energized to allow a clutch to connect the pusher bar mechanism with a driving member.

11. For use on. a cardboard scoring, cutting or similar machine in which the blanks are successively supplied to a set of'scoring knives or cutters by a pusher bar, an

electrical feed controlling mechanism comprising a trip arm having an end adapted supplied to the.

which said arm is freely suspended, acontact pieceresiliently connected to and movable with said trip arm, a contact piece on said support, a pin on which the latter contact piece is fixed and to which an-electrical conductor is connected, an insulat ng sleeve in said bracket and supporting said pin, means for ad ustably fixing the bracket on a suitable part of the machine, a solenoid couples the pusher bar mechanism to its driving means each time a blank is supplied to the pusher bar and actuates the said trip arm for establishing the circuit.

NICHOLAS PENTREATH ANDREW. 

